85572-21-0Relevant articles and documents
A Novel Cyclization Reaction of Alkylthiodiphenylcyclopropenium Ions with Acyclic 1,3-Diketones to Give Cyclopentadienols
Yoshida, Hiroshi,Nakajima, Mikito,Ogata, Tsuyoshi,Matsumoto, Kiyoshi,Acheson, R. Morrin,Wallis, John D.
, p. 3015 - 3019 (2007/10/02)
Reaction of methylthio-, ethylthio-, and benzylthiodiphenylcyclopropenium salts with 2,4-pentanedione (3a) and ethyl acetoacetate (3b) yielded the cyclopentadienol derivatives (4) by ring expansion.One of the products 4a was shown to be 4-acetyl-5-hydroxy